[tip: x86/urgent] docs/kernel-parameters: Update descriptions for "mitigations=" param with retbleed

[tip-bot2 for Eiichi Tsukata]

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     ea304a8b89fd0d6cf94ee30cb139dc23d9f1a62f
Gitweb:        https://git.kernel.org/tip/ea304a8b89fd0d6cf94ee30cb139dc23d9f1a62f
Author:        Eiichi Tsukata <eiichi.tsukata@xxxxxxxxxxx>
AuthorDate:    Thu, 28 Jul 2022 04:39:07 
Committer:     Borislav Petkov <bp@xxxxxxx>
CommitterDate: Fri, 29 Jul 2022 20:47:07 +02:00

docs/kernel-parameters: Update descriptions for "mitigations=" param with retbleed

Updates descriptions for "mitigations=off" and "mitigations=auto,nosmt"
with the respective retbleed= settings.

Signed-off-by: Eiichi Tsukata <eiichi.tsukata@xxxxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: corbet@xxxxxxx
Link: https://lore.kernel.org/r/20220728043907.165688-1-eiichi.tsukata@xxxxxxxxxxx
---
 Documentation/admin-guide/kernel-parameters.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c0fdb04..cc3ea8f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3176,6 +3176,7 @@
 					       no_entry_flush [PPC]
 					       no_uaccess_flush [PPC]
 					       mmio_stale_data=off [X86]
+					       retbleed=off [X86]
 
 				Exceptions:
 					       This does not have any effect on
@@ -3198,6 +3199,7 @@
 					       mds=full,nosmt [X86]
 					       tsx_async_abort=full,nosmt [X86]
 					       mmio_stale_data=full,nosmt [X86]
+					       retbleed=auto,nosmt [X86]
 
 	mminit_loglevel=
 			[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this